Action tiles

Hi,
I use your virtual thermostat to view in action tiles a value of temperature I have into one variable; in webcore I set the temperature of virtual thermostat and in action tiles I show this value.
When in action tiles I import your VT I find it very low on the list (in duplicates) strangely, but imported it, I show the temperature without problem ....
After I create a second VT to show another temperature and I import in action tiles this value also .....
Well, the two VT stopped working; I update the value set temperature, but in action tiles the temperature don't update ....
I had to cancel the last VT and now the firt VT tile work fine.
Can you verify where is the problem ?